How many total atoms are there in 69.1 grams of ammonia (NH3)​

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.